What to Do About Celery Seedling Death? A Detailed Guide to the Latest Control Methods
Celery appears on dining tables very frequently and is grown across a very wide area nationwide. However, during the growing process, celery seedling death is often encountered in summer. Celery seedling death can severely affect the growth and development of celery, causing a major drop in celery yield. It also severely affects the economic interests of growers. Today, the editor will talk with everyone about control measures for celery seedling death.
1. Soil disinfection
Celery is a plant that should not be grown continuously. Continuous cropping of celery makes celery in the second year highly prone to pests and diseases, severely affecting yield and quality. Before sowing, various chemicals should be used to disinfect the soil. For example, formalin can be used. 15-20 days before sowing, use a hoe to loosen the soil. Then mix formalin with water evenly and stir it into the soil. After stirring, cover the soil with plastic film. After one week, the film can be removed, and the soil should continue to be loosened. After half a month, sowing can begin.
2. Seed treatment
When selecting seeds, choose disease-free seeds, or sow in areas where disease has not occurred. If the seeds are not disease-free, salt water can be used to select seeds, soaking the sclerotia out of the seeds. When foreign matter appears on the water surface, that is the sclerotia of the seeds. At this point, remove the seeds, rinse them clean with water, air-dry them and sow. In this way, celery sclerotinia disease can be effectively controlled. The seeds can also be placed in warm water at about 50 degrees for soaking, and chemicals such as thiram wettable powder can be used for disinfection to control damping-off and root rot.
3. Field management
Reasonably control planting density. If planting density is too high, field ventilation and light penetration will be too poor, leading to seedling death. After emergence, thin the seedlings immediately to prevent them from shading each other. If there is too much water in the field, drain it out in time, pull out diseased and damaged plant residues and carry them out of the garden in a centralized way. When loosening soil and pulling weeds, be careful not to damage celery roots, reducing some manual damage. After harvest, deeply plow the soil in time and disinfect it to kill pathogens in the soil and reduce the occurrence of pests and diseases.
4. Disease control
Pay attention to celery diseases. Celery diseases generally include a series of diseases such as soft rot, black rot, sclerotinia disease and damping-off. The main approach is still prevention, strengthening seed inspection and disinfection. This is because most disease occurrences are caused by fungal diseases. Explore the patterns and timing of disease occurrence so as to make corresponding preparations at the time of onset. Diseases generally directly harm the roots, stems and leaves of crops. This leads to large-scale yield reduction or even total crop failure.
The above are the methods for how to prevent and solve celery seedling death. Most seedling death is caused by improper management by farmers before and after celery sowing. Ensure the nutrients and environment required for celery growth, and carry out crop rotation for more than two years. In this way, celery seedling death can be well prevented.